GCSE Foundation - Sometimes Isosceles Triangles are upside down
I can't remember how many times I've come across angles questions involving alternate angles and isosceles triangles in which my students haven't recognised that the isosceles triangles may not be in the orientation they first assume it to be in. This is a very basic resource to use as a starter / short main activity to help with this misconception. Not very flashy, but I hope it's helpful for some.


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Created: Mar 23, 2017

Updated: Nov 15, 2018

Lesson starter

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Creative Commons "Sharealike"